MSD Manual

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MSD Manual
Veterinary Manual
The trusted provider of veterinary information since 1955

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VETERINARY PET
Tympanic bulla and membrane, cat

Tympanic bulla and membrane, cat

Tympanic bulla and membrane, cat

Deep structures of tympanic bulla and tympanic membrane of the cat. Illustration by Dr. Gheorghe Constantinescu.

Merck & Co., Inc., Rahway, NJ, USA (known as MSD outside of the US and Canada) is dedicated to using leading-edge science to save and improve lives around the world.  The Veterinary Manual was first published in 1955 as a service to the community.  The legacy of this great resource continues in the online and mobile app versions today.

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